In this engaging simulation of electrophoresis, each student in your class becomes a nucleotide in a giant DNA model
Ever bite into an apple and hit a brown spot? What causes apples, potatoes, pears, and other foods to turn brown? Can it be prevented?
How do cell membranes regulate the internal composition of the cell? Use dialysis tubing to teach students the fundamental concepts of diffusion.
Explore the effects of mutations: How does a change in one nucleotide affect the way a message is transcribed to RNA and translated to a protein?
A variety of factors may cause gene expression to start or stop. What effect does temperature have?
Do you like to eat raw potato? How is its texture different than a cooked potato? How about its taste? In this experiment you can compare raw and cooked potato in a very different way.
How does the architecture of a leaf affect its photosynthetic efficiency?
Discover the appearance and organizations of plant cells in different phases of the cell cycle.
Microscope observations and some simple calculations reveal a lot about root tip growth
Diffusion of water into and out of cells is often demonstrated by treating cells with various concentrations of solutions and then examining them under a microscope. This activity allows students to view changes caused by osmotic pressure using a giant "cell" (chicken egg).
The membrane of a living cell plays a vital role in regulating what goes into and out of the cell. Some characteristics of cell membranes are discovered in this exercise.
Where do living things come from? Do they arise from non-living materials, or can they only come from pre-existing living things? Recreate three classic experiments that helped to disprove the theory of spontaneous generation.
Use this activity to provoke discussion of an important social and health issue. Designed to simulate the transmission of a virus, the activity is based on a color change in a simple chemical reaction.